Our 2022 Kia Sorento SX Can't Catch a 'Brake'

20,000-Mile Update

Our long-term Kia Sorento SX has proven to be a comfortable road-trip vehicle, and staffers lately have been routinely signing it out to travel to faraway places.

Photo assistant Charley M. Ladd added more than 2500 miles driving the Sorento from our Ann Arbor, Michigan, home base to Pikes Peak in Colorado for the mountain's annual hill-climb and back in late June. Immediately after that, road test editor Rebecca Hackett put nearly 500 more miles on the Kia when she took it to Thompsonville, Michigan, for the Fourth of July weekend. Factor in the Sorento's sizable cargo hold with its third-row bench folded, generous passenger space for those in the second-row captain's chairs, and quiet interior (just 68 decibels enter the cabin at 70 mph, a figure equal to that of the last Acura RDX we tested), and its little surprise staffers are regularly enlisting this Sapphire Blue SUV for road-trip duty.

Sorento Service

That said, Hackett wrote that the dual-clutch automatic transmission's off-the-line shudders were "really cramping [her] style," although neither she nor Ladd noted any issues with the gearbox at highway speeds.

By the time the Sorento finally caught a break from cross-country and interstate cruising, with its odometer already past the 16,000-mile mark, it also had a brake pedal that was pulsating under pressure.

Our local Kia service center updated the gearbox's programming free of charge. With the brakes, the culprit was scored rotors. Resurfacing the discs set us back $353. It also reduced the thermal capacity of the Sorento's rotors, increasing the likelihood of future scoring.

Add in the $268 it cost us to have the Sorento's oil and filter changed, tires rotated, and cabin air filter replaced, and we were out a total of $621.

More Road-Tripping

With its scheduled maintenance complete and its brake and transmission troubles addressed, the Sorento hit the road once again. Technical editor Dan Edmunds drove it from Michigan to his home near Los Angeles.

"The low-speed drivability issues didn't rear their head," he said at the conclusion of the 2467-mile trip. Nor did the left pedal pulsate when Edmunds applied the brakes.

We figure this bodes well for the remaining 20,000 miles of our Sorento SX's 40,000-mile stay. That said, if there remain any weaknesses in the Sorento's tweaked transmission programming or its resurfaced rotors, a few weeks of driving in traffic-heavy Southern California ought to uncover them.

Months in Fleet: 6 months Current Mileage: 20,934 miles
Average Fuel Economy: 24 mpg
Fuel Tank Size: 17.7 gal Observed Fuel Range: 420 miles
Service: $402 Normal Wear: $0 Repair: $353
Damage and Destruction: $0

10,000-Mile Update

Approximately 3200 miles into its stay, our 2022 Kia Sorento SX showed its first signs of potential trouble. Halfway through a 360-mile trip to Wisconsin, "the Sorento started bucking and coughing on Interstate 94 and had trouble maintaining speed," Buyer's Guide deputy editor Rich Ceppos wrote in the Kia's logbook.

After limping the Sorento to a truck stop, Ceppos shut off the vehicle and then, a few seconds later, restarted it. All returned to normal, and he was able to complete the remainder of his journey to the Badger State without any additional troubles. It seems this was an isolated incident, too, as the issue has yet to return.

Since then, however, another powertrain-related gremlin has cropped up.

The Sorento SX employs an eight-speed dual-clutch automatic transmission, and we suspect the gearbox's oil-cooled clutch sometimes send shudders through the SUV's cabin at low speeds. Although we noticed this trait early into the Sorento's stay with us, we found it to be an irregular occurrence. We think the culprit may be the clutch pack that operates gears one, three, five, and seven, as these vibrations are most noticeable when the vehicle pulls away from a stop.

In fact, the issue was so infrequent that we forgot to mention it to the service advisor when we brought the Sorento in for its 8000-mile checkup, a $134 service that included an oil and filter change and a tire rotation. In the nearly 2000 miles since it last went in for maintenance, though, the Kia's shudders have become more commonplace. It's something we plan to have investigated at our next service appointment.

Powertrain problems aside, our Sorento has received plentiful praise for its exterior and interior designs. Senior editor Joey Capparella deemed the exterior "fresh and well proportioned." The all-wheel-drive Sorento SX's 8.2 inches of ground clearance nets our long-term vehicle a genuine SUV stance—as opposed to the slightly more wagon-like posture of lower front-wheel-drive models, which offer just 6.9 inches of ground clearance. That slightly taller ride height complements the trim's smooth flanks, black-painted 20-inch wheels, and full-LED headlights and fog lights. The look is cleaner than the fussy X-Line decor Kia fits to most other all-wheel-drive variants of the Sorento.

Similar adjectives have been used to describe the SUV's interior, with associate editor Caleb Miller characterizing the Sorento's environs as "clean and modern." Others commended the Kia's high-quality materials, which contribute to a cabin that looks and feels far nicer than our Sorento's $41,935 price would suggest. However, we're wondering how well the SUV's light-gray interior will hold up over the course of its 40,000-mile stay with us.